package com.sky.controller.admin;


import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.dto.DishStatusDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品:{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);


        //精确清理 因为只删除某个key，添加菜品
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);
        return Result.success();
    }


    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /*删除菜品*/
    @DeleteMapping
    @ApiOperation("菜品删除")
    public Result delete(@RequestParam List<Integer> ids){
        log.info("菜品批量删除{}",ids);
        dishService.deleteBatch(ids);

        //将所有的菜品缓存数据清理，所有dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }


    /*
    * 根据id查询菜品
    *
    * */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Integer id)  //VO指的是前端所需参数
    {
        log.info("根据id查询菜品:{}",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }


    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品:{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将所有的菜品缓存数据清理，所有dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /*菜品的起售禁售*/
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售和停售")
    public Result startOrStop(@PathVariable Integer status,@RequestParam Long id){
        DishStatusDTO dishStatusDTO = new DishStatusDTO();
        dishStatusDTO.setStatus(status);
        dishStatusDTO.setId(id);
        log.info("菜品起售和停售：{}",dishStatusDTO);
        dishService.startOrStop(dishStatusDTO);

        //将所有的菜品缓存数据清理，所有dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }


    /*根据分类id来查询菜品*/
    @GetMapping("/list")
    public Result<List<Dish>> getByCategoryId(@RequestParam Integer categoryId){
        List<Dish> list = dishService.getByCategoryId(categoryId);
        return Result.success(list);
    }

    /*清理缓存数据*/
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }


}
